As we know, steel fire doors are what we call iron fire doors. The door frame, door leaf frame and door leaf panel made of steel materials are used for fire doors. The door leaf is filled with non-toxic and harmless fireproof and thermal insulation materials, and equipped with fireproof hardware fittings to form a door with certain fire resistance, so its fire resistance is very good.

ZHTdoors 방화문, 방화문 및 Windows 분야에서 31년의 생산 경험. 주요 UL 방화문, EN 방화문, BS EN 방화문 등. 우리는 인증을 받았습니다. ZHTdoors는 OEM 및 무료 디자인을 지원합니다. 우리의 장점: 좋은 품질, 공장 가격, 좋은 서비스. 상담을 환영합니다.